LT3681EDE#TRPBF

$9.69

Description：IC REG BUCK ADJ 2A 14DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:66494b349821 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 2A 14DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.6V
Voltage - Input (Max)：34V
Voltage - Output (Min/Fixed)：1.265V
Voltage - Output (Max)：20V
Current - Output：2A
Frequency - Switching：300kHz ~ 2.8MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：14-WFDFN Exposed Pad
Supplier Device Package：14-DFN (4x3)
Grade：-
Qualification：-

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LT3681EDE#TRPBF

Overview

The LT3681EDE#TRPBF is a step-down switching regulator manufactured by Analog Devices Inc., housed in a 10-DFN (3x3) package with an exposed pad. It operates with an input voltage range of 3.6V to 36V and delivers up to 2A output current. The device integrates a power Schottky diode, eliminating the need for external components. It supports adjustable output voltages starting from 0.79V, with a maximum output of 20V. The switching frequency ranges from 200kHz to 2.8MHz, and it functions within a temperature range of -40°C to 125°C.

Feature Summary

Integrates a high-efficiency power Schottky diode to reduce component count
Supports wide input voltage range suitable for various bus architectures
Features adjustable switching frequency for optimization of size or noise
Includes thermal regulation and cycle-by-cycle current limit protection

Applications

Industrial point-of-load regulation
Battery-powered equipment power management
Distributed power systems
Automotive electronics applications

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm that the EDE variant corresponds to the 10-DFN package type required for your PCB layout. Ensure compatibility with the intended operating temperature range and input voltage specifications before finalizing procurement. Cross-reference the manufacturer datasheet for latest revision status.

Selection Notes

Select this component when a compact solution with integrated rectification is required. The fixed internal diode simplifies design compared to synchronous alternatives. Consider the trade-off between efficiency at light loads and the simplified bill of materials. Verify that the 2A current rating meets the peak load requirements of the target application circuit.

Part Context

This part belongs to the LT3681 family of 36V, 2A step-down regulators. It is distinct from the LT3685 which lacks the integrated diode but offers higher frequency options. The LT3681EDE#TRPBF is designed for applications prioritizing small footprint and reduced external component count over maximum efficiency at very low currents.